<?php

    session_start();
    create_image();
    exit();
    
    function create_image(){
	    $md5_hash = md5(rand(0,999)); 
	    $security_code = substr($md5_hash, 15, 5); 
	    $_SESSION["security_code"] = $security_code;
	    $width = 100; 
	    $height = 30;  
	    $image = ImageCreate($width, $height);  
	    $white = ImageColorAllocate($image, 255, 255, 255); 
	    $black = ImageColorAllocate($image, 0, 0, 0); 
	    ImageFill($image, 0, 0, $black); 
	    ImageString($image, 5, 30, 6, $security_code, $white); 
	    header("Content-Type: image/jpeg"); 
	    ImageJpeg($image); 
	    ImageDestroy($image); 
    }
    
        
?>
